#include <bits/stdc++.h> #define N 100009 #define pii pair <int, int> #define ff first #define ss second #define pb push_back #define ll long long using namespace std; int n, v[4*N][3], c[4*N]; void upd(int nd, int l, int r, int x, int y){ if(v[nd/2][2]!=0) v[nd][2]+=v[nd/2][2], v[nd][1]+=v[nd/2][2], c[nd]+=v[nd/2][2]; if(l>x) return; if(r<=x){ v[nd][2]+=y; v[nd][1]+=y, c[nd]+=y; return; } int md=(l+r)/2; upd(nd*2, l, md, x, y); upd(nd*2+1, md+1, r, x, y); v[nd][1]=max(v[nd*2][1], v[nd*2+1][1]); c[nd]=min(c[nd*2], c[nd*2+1]); v[nd][2]=0; } int main(){ cin>>n; for(int i=1; i<=n; i++){ int x, y; cin>>x>>y; if(y==1) upd(1, 1, n, x, -1); else upd(1, 1, n, x, 1); if (v[1][1] <= 0) cout<<">\n"; else if (c[1] >= 0) cout<<"<\n"; else cout<<"?\n"; } }